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What are the types of Castrol engine oils?

1 Answers

McEmily

07/29/25 4:03pm

Castrol engine oils are divided into five major series: Edge, Magnetec, GTX, GTX Ultra, and GTD. If categorized by full synthetic, semi-synthetic, and mineral oils, their classifications are as follows: full synthetic includes Edge and Magnetec Stop-Start, semi-synthetic includes Magnetec, while GTX, GTX Ultra, and GTD are mineral oils. The product types of Castrol engine oils are as follows: 1. Edge: This is Castrol's top-tier engine lubricant, on par with Mobil 1 and Shell Helix Ultra. Edge incorporates a unique liquid titanium formula, offering exceptional oil film adaptability that effectively reduces direct metal-to-metal contact under various driving conditions, naturally minimizing friction losses. Edge meets the demanding high-temperature, high-pressure requirements of modern high-performance engines. It also effectively reduces deposits, keeping the engine clean and enhancing power performance. 2. Magnetec (Magnetec and Magnetec Stop-Start): Although both belong to the Magnetec series, Magnetec Stop-Start is a full synthetic lubricant, while Magnetec is only semi-synthetic. Despite sharing the same API SN rating, Magnetec Stop-Start is significantly more expensive than Magnetec due to its different formulation. 3. GTX/GTX Ultra/GTD: The primary function of these three is to combat sludge and protect the engine. In terms of performance strength, GTX is the strongest, followed by GTX Ultra, which offers better longevity than GTX; GTD is the weakest and also Castrol's most economical lubricant, more suitable for high-mileage engines.

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